agenttesla | 66fcc078741968b04e45e850256bcf6f64506fd143a5b9ebf31b5244d423e277

General

Target

purchase order.exe
Size

955KB
MD5

83027ceebd07df0f927f780be4dbc729
SHA1

acbc3142cac50ab28474f5c8945585e2c07ba81d
SHA256

66fcc078741968b04e45e850256bcf6f64506fd143a5b9ebf31b5244d423e277
SHA512

c7516c61db56217fa75817f93242ecd5c1add40a59d8cda221f51d6199e11817bc31c8cc808cde3377aa1df1266a6ad36f5022a21163ae4d1d39ece4e18ff2ee
SSDEEP

24576:4p1/YGDkjwJsoGlWM9STNNS/GoqMUwwhvgoK3:4ptY5UsoGlxZ/GotU/v

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5615947415:AAHTRsWQ236jQ31p3gNngAMLROoKsqd6tPs/

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\DfdZo = "C:\\Users\\Admin\\AppData\\Roaming\\DfdZo\\DfdZo.exe"	purchase order.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
4	api.ipify.org
5	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1708 set thread context of 1768	1708	purchase order.exe	33

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1708	purchase order.exe
1708	purchase order.exe
1748	powershell.exe
568	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	purchase order.exe
Token: SeDebugPrivilege	1768	purchase order.exe
Token: SeDebugPrivilege	1748	powershell.exe
Token: SeDebugPrivilege	568	powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1708 wrote to memory of 568	1708	purchase order.exe	27
PID 1708 wrote to memory of 568	1708	purchase order.exe	27
PID 1708 wrote to memory of 568	1708	purchase order.exe	27
PID 1708 wrote to memory of 568	1708	purchase order.exe	27
PID 1708 wrote to memory of 1748	1708	purchase order.exe	29
PID 1708 wrote to memory of 1748	1708	purchase order.exe	29
PID 1708 wrote to memory of 1748	1708	purchase order.exe	29
PID 1708 wrote to memory of 1748	1708	purchase order.exe	29
PID 1708 wrote to memory of 1844	1708	purchase order.exe	31
PID 1708 wrote to memory of 1844	1708	purchase order.exe	31
PID 1708 wrote to memory of 1844	1708	purchase order.exe	31
PID 1708 wrote to memory of 1844	1708	purchase order.exe	31
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33
PID 1708 wrote to memory of 1768	1708	purchase order.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	purchase order.exe

C:\Users\Admin\AppData\Local\Temp\purchase order.exe
"C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1708
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:568
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\hUkqfyOvIRph.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1748
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hUkqfyOvIRph" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC66C.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1844
- C:\Users\Admin\AppData\Local\Temp\purchase order.exe
  "C:\Users\Admin\AppData\Local\Temp\purchase order.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:1768

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

3

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC66C.tmp

Filesize
1KB

MD5
e1c27a868a873b8ed429b126cdfaec6b

SHA1
05b7ef0acdb57be9c20cddeeabac2ed2f8dc0869

SHA256
beb7759728586a89a9becefa541d49a73847ecbb0f9588c4365d22644bf1b37d

SHA512
9de020fc0aa7d4432ff52c73a366166b74c4965356aca50672beeff05bde6c07352e132b241881096e744f172ea66cbc347224ece7781b50b8ac1f0a79869f1f

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
017d9f4c5126dd734cb26884a2e659a9

SHA1
b1b59368e5f73c7fcb3a4349cd8c844b239c02ee

SHA256
777014fc8dc392d2bea7e470308becfe6e57716ab3d74dfdfae3e3ae2d7a8c9f

SHA512
90209401b4d37ab08521f3eeebe083f9dc2b63721bdfe5433ff01757d8b3c46e1dbbe8c34888d1596c4c2fee283c5f1e799fac857289bafa2f579d1c67367095

Download Submit
memory/568-80-0x000000006ECC0000-0x000000006F26B000-memory.dmp

Filesize
5.7MB

Download
memory/1708-66-0x00000000045D0000-0x0000000004602000-memory.dmp

Filesize
200KB

Download
memory/1708-58-0x0000000005600000-0x000000000568C000-memory.dmp

Filesize
560KB

Download
memory/1708-57-0x0000000000410000-0x000000000041C000-memory.dmp

Filesize
48KB

Download
memory/1708-56-0x00000000002C0000-0x00000000002D4000-memory.dmp

Filesize
80KB

Download
memory/1708-54-0x0000000001070000-0x0000000001166000-memory.dmp

Filesize
984KB

Download
memory/1708-55-0x0000000075711000-0x0000000075713000-memory.dmp

Filesize
8KB

Download
memory/1748-79-0x000000006ECC0000-0x000000006F26B000-memory.dmp

Filesize
5.7MB

Download
memory/1768-70-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1768-68-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1768-71-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1768-72-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1768-77-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1768-75-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download
memory/1768-67-0x0000000000400000-0x0000000000430000-memory.dmp

Filesize
192KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads